body {
    background-color: #111;
    margin: 0;
    padding: 0;
}
#graph {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}
#info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: white;
    color: black;
    font-family: sans-serif;
    font-size: 12px;
    text-align: center;
    margin: 0;
    padding: 0.5em 1em;
}
#filter {
    position: absolute;
    top: 1em;
    right: 1em;
    width: 20em;
    font-size: 12px;
}
